Abstract: An authentication system combines device credential verification with user credential verification to provide a more robust authentication mechanism that is convenient to the user and effective across enterprise boundaries. In one implementation, user credential verification and device credential verification are combined to provide a convenient two-factor authentication. In this manner, an account authority service or other authentication provider verify both factors and provide a security token in accordance with the security policy of the account network resource the user is intending to access. The level of privilege granted by the target account network resource can vary depending on the number and type of factors verified by the account authority service.

Abstract: Systems, computer-implemented methods, and computer-readable media for establishing an online account with a resource provider are provided. An authentication token including identification of a user from an authentication server is received. The identification of the user from the authentication token is utilized to establish an online account for the user with the resource provider. Additional credentialing information from the user for the online account is received. The additional information received from the user is associated with the online account for the user with the resource provider.

Abstract: One or more strong proofs are maintained as associated with an account of a user. In response to a request to change a security setting of the account, an attempt is made to confirm the request by using one of the one or more strong proofs to notify the user. The change is permitted if the request is confirmed via one or more of the strong proofs, and otherwise the change to the security setting of the account is kept unchanged.

Abstract: An integrated authentication service is described which may receive a bundled request from one or more clients. One or more of the described techniques may be utilized to provide, in response to a single bundled request, a token for proof of identity and a certificate for establishing secure communications.

Abstract: Embodiments of multiple security token transactions are described herein. One or more of the described techniques may be utilized to provide, in a single request and response, an authentication token and a plurality security tokens for proof of identity at respective service providers.

Abstract: Embodiments of proxy authentication and indirect certificate chaining are described herein. In an implementation, authentication for a client occurs via a proxy service. Proxy service communicates between client and server, and caches security tokens on behalf of the client. In an implementation, trustworthiness of certificate presented to a client to establish trust is determined utilizing a signed data package which incorporates a plurality of known certificates. The presented certificate is verified without utilizing root certificates installed on the client device.

Abstract: An authentication system combines device credential verification with user credential verification to provide a more robust authentication mechanism that is convenient to the user and effective across enterprise boundaries. In one implementation, user credential verification and device credential verification are combined to provide a convenient two-factor authentication. In this manner, an account authority service or other authentication provider verify both factors and provide a security token in accordance with the security policy of the account network resource the user is intending to access. The level of privilege granted by the target account network resource can vary depending on the number and type of factors verified by the account authority service.

Abstract: One or more strong proofs are maintained as associated with an account of a user. In response to a request to change a security setting of the account, an attempt is made to confirm the request by using one of the one or more strong proofs to notify the user. The change is permitted if the request is confirmed via one or more of the strong proofs, and otherwise the change to the security setting of the account is kept unchanged.

Abstract: An authentication system combines device credential verification with user credential verification to provide a more robust authentication mechanism that is convenient to the user and effective across enterprise boundaries. In one implementation, user credential verification and device credential verification are combined to provide a convenient two-factor authentication. In this manner, an account authority service or other authentication provider verify both factors and provide a security token in accordance with the security policy of the account network resource the user is intending to access. The level of privilege granted by the target account network resource can vary depending on the number and type of factors verified by the account authority service.

Abstract: An authentication system combines device credential verification with user credential verification to provide a more robust authentication mechanism that is convenient to the user and effective across enterprise boundaries. In one implementation, user credential verification and device credential verification are combined to provide a convenient two-factor authentication. In this manner, an account authority service or other authentication provider verify both factors and provide a security token in accordance with the security policy of the account network resource the user is intending to access. The level of privilege granted by the target account network resource can vary depending on the number and type of factors verified by the account authority service.

Abstract: Systems, computer-implemented methods, and computer-readable media for establishing an online account with a resource provider are provided. An authentication token including identification of a user from an authentication server is received. The identification of the user from the authentication token is utilized to establish an online account for the user with the resource provider. Additional credentialing information from the user for the online account is received. The additional information received from the user is associated with the online account for the user with the resource provider.